<script setup>
import {
    Edit,
    Delete
} from '@element-plus/icons-vue'
import { ref } from 'vue'
import { getArticleCategoryService, 
        addArticleCategoryService, 
        updateArticleCategoryService,
        deleteArticleCategoryService 
    } from '@/api/article'
import { ElMessage,ElMessageBox } from 'element-plus'
//文章分类列表
const categorys = ref([])
//获取文章分类列表
const getCategoryList = async ()=>{
    let result = await getArticleCategoryService();
    categorys.value = result.data;
}
getCategoryList();
//控制添加分类弹窗
const dialogVisible = ref(false)

//添加分类数据模型
const categoryForm = ref({
    categoryName: '',
    categoryAlias: ''
})
//添加分类表单校验
const rules = {
    categoryName: [
        { required: true, message: '请输入分类名称', trigger: 'blur' },
    ],
    categoryAlias: [
        { required: true, message: '请输入分类别名', trigger: 'blur' },
    ]
}
//添加分类，显示弹窗并修改弹窗标题
const showAddCategoryDialog = ()=>{
    dialogTitle.value = '添加分类'
    dialogVisible.value = true
    //清空数据模型
    clearCategoryForm();
}

//清空数据模型
const clearCategoryForm = ()=>{
    categoryForm.value.categoryName = ''
    categoryForm.value.categoryAlias = ''
}
//添加分类，调用服务添加分类
const addCategory = async ()=>{
    let result = await addArticleCategoryService(categoryForm.value);
    ElMessage.success(result.msg?result.msg:'添加成功');
    getCategoryList();
    dialogVisible.value = false;
}
//删除分类
const deleteCategory = async (id)=>{
    //提示用户确认框
    ElMessageBox.confirm(
    '你确定要删除此分类信息吗？',
    '温馨提示',
    {
      confirmButtonText: '确认',
      cancelButtonText: '取消',
      type: 'warning',
    }
    ).then(async () => {
        await deleteArticleCategoryService(id);
        getCategoryList();  
        ElMessage({
            type: 'success',
            message: '删除成功',
        })
    }).catch(() => {
      ElMessage({
        type: 'info',
        message: '用户取消了删除操作',
      })
    });
    
}
//
//修改分类
const editCategory = async ()=>{
    let result = await updateArticleCategoryService(categoryForm.value);
    ElMessage.success(result.msg?result.msg:'修改成功');
    getCategoryList();
    dialogVisible.value = false;
}
//确认分类，调用对应方法，刷新数据，隐藏弹窗
const confirmCategory = async ()=>{
    if(dialogTitle.value === '添加分类'){
        await addCategory();
    }
    if(dialogTitle.value === '修改分类'){
        await editCategory();
    }
}

//定义变量控制标题的展示
const dialogTitle = ref('')
//显示弹窗
const showEditCategoryDialog = (row)=>{
    //修改标题
    dialogTitle.value = '修改分类'
    dialogVisible.value = true
    //修改数据模型，copy数据
    categoryForm.value.categoryName = row.categoryName
    categoryForm.value.categoryAlias = row.categoryAlias
    //扩展id属性，将来需要传递给后台
    categoryForm.value.id = row.id
}
const confirmDeleteCategory = async ()=>{ 

}
</script>
<template>
    <el-card class="page-container">
        <template #header>
            <div class="header">
                <span>文章分类</span>
                <div class="extra">
                    <el-button type="primary" @click="showAddCategoryDialog">添加分类</el-button>
                </div>
            </div>
        </template>
        <el-table :data="categorys" style="width: 100%">
            <el-table-column label="序号" width="100" type="index"> </el-table-column>
            <el-table-column label="分类名称" prop="categoryName"></el-table-column>
            <el-table-column label="分类别名" prop="categoryAlias"></el-table-column>
            <el-table-column label="操作" width="100">
                <template #default="{ row }">
                    <el-button :icon="Edit" circle plain type="primary" @click="showEditCategoryDialog(row)"></el-button>
                    <el-button :icon="Delete" circle plain type="danger" @click="deleteCategory(row.id)"></el-button>
                </template>
            </el-table-column>
            <template #empty>
                <el-empty description="没有数据" />
            </template>
        </el-table>
        <el-dialog v-model="dialogVisible" :title="dialogTitle" width="30%">
            <el-form :model="categoryForm" :rules="rules" label-width="100px" style="padding-right: 30px">
                <el-form-item label="分类名称" prop="categoryName">
                    <el-input v-model="categoryForm.categoryName" minlength="1" maxlength="10"></el-input>
                </el-form-item>
                <el-form-item label="分类别名" prop="categoryAlias">
                    <el-input v-model="categoryForm.categoryAlias" minlength="1" maxlength="15"></el-input>
                </el-form-item>
            </el-form>
            <template #footer>
                <span class="dialog-footer">
                    <el-button @click="dialogVisible = false">取消</el-button>
                    <el-button type="primary" @click="confirmCategory"> 确认 </el-button>
                </span>
            </template>
        </el-dialog>
    </el-card>
</template>

<style lang="scss" scoped>
.page-container {
    min-height: 100%;
    box-sizing: border-box;

    .header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}
</style>